Martin pointed me towards this commit which allows kwin to recompile with Qt 5.6 http://commits.kde.org/kwin/99f491e79914da85213a899574ae36ad2e3c097c I'm not able to make an updated tar because the translations don't seem to be in place yet for Plasma/5.8 branch so if you use Qt 5.6 you'll need to add this patch
Jonathan
